Diffraction and interference

Diffraction and interference

11th - 12th Grade

25 Qs

quiz-placeholder

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Diffraction and interference

Diffraction and interference

Assessment

Quiz

Physics, Science

11th - 12th Grade

Hard

Created by

Jay Rarugal

Used 3+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Two waves E and G are shown. The waves have the same speed.

Which statement is correct?

Wave E has a greater amplitude than wave G.

Wave E has a greater intensity than wave G.

Wave E has a smaller frequency than wave G.

Wave E has a smaller wavelength than wave G.

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

The diagram shows a displacement-time graph for a progressive wave.

Amplitude: 5 mm; Frequency: 40 Hz

Amplitude: 5 mm; Frequency: 50 Hz

Amplitude: 10 mm; Frequency: 40 Hz

Amplitude: 10 mm; Frequency: 50 Hz

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which observation indicates that sound waves are longitudinal?

Sound can be reflected from a solid surface.

Sound cannot be polarised.

Sound is diffracted around corners.

Sound is refracted as it passes from hot air to cold air.

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

A diffraction grating is used to measure the wavelength of monochromatic light, as shown in the diagram.

The spacing of the slits in the grating is 1.00 x10-6 m. The angle between the first order diffraction maxima is 70.0o.

What is the wavelength of the light?

287 nm

470 nm

574 nm

940 nm

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Interference of light is evidence that:

the speed of light is very large

light is a transverse wave

light is electromagnetic in character

light is a wave phenomenon

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In a Young's double-slit experiment the centre of a bright fringe occurs wherever waves from the slits differ in the distance they travel by a multiple of:

quarter of a wavelength.

half a wavelength.

a wavelength.

three-fourths of a wavelength.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In a Young's double-slit experiment, the slit separation is doubled. To maintain the same fringe spacing on the screen, the screen-to-slit distance D must be changed to:

D/2

D 2\sqrt{2}

2D

4D

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